Process for preparing alternating copolymer of butadiene and alpha-olefine

ABSTRACT

A PROCESS FOR PREPARING AN ALTERNATING COPOLYMER OF BUTADIENE AND A-OLEFIN HAVING THE FORMULA OF CH2=CHR, WHEREIN R REPRESENTS PHENYL OR A NORMAL OR BRANCHED CHAIN LOWER ALKYL RADICAL, WHICH COMPRISES CONTACTING BUTADIENE AND THE A-OLEFINE IN LIQUID PHASE WITH A CATALYST SYSTEM OF AN ORGANOALUMINUM COMPOUND, A VANADIUM COMPOUND HAVING V-X LINKAGE (X IS HALOGEN) AND A COMPOUND HAVING M-OR LINKAGE, M IS AN ATOM WHOSE ELECTRO NEGATIVITY IS LOWER THAN 2.2 AND R IS A HYDROCARBON RADICAL OF ALKYL, ARYL, CYCLOALKYL OR HALOGENATED ETHER RADICAL OR A COMPOUND HAVING (O-M)X-(O-M&#39;&#39;)Y-OR LINKAGE (M IS DEFINED AS ABOVE AND M&#39;&#39; CAN BE DEFINED BY THE SAME DEFINITION GIVEN IN M). OPTIONALLY, A HALOGEN ATOM, A HALOGEN CONTAINING COMPOUND, A METAL OXIDE OR A METALLOID OXIDE CAN BE ADDED TO THE CATALYST SYSTEM.

United States Patent 3,700,638 PROCESS FOR PREPARING ALTERNATING CO- POLYMER 0F BUTADIENE AND a-OLEFINE Akiharo Kawasaki and Isao Maruyama, Ichihara, Japan, jayissignors to Maruzen Petrochemical Co., Ltd., Tokyo,

apan N0 Drawing. Filed Apr. 17, 1970, Ser. No. 29,678 Claims priority, application Japan, Apr. 25, 1969, 14/131,429; May 13, 1969, 44/36,162; June 19, 1969, 44/47,918; July 3, 1969, 44/52,149; Aug. 15, 1969, 44/64,143; Sept. 10, 1969, 44/71,260; Sept. 25, 1969, 44/75,828; Sept. 30, 1969, 44/ 77,410, 44/77,411; Oct. 9, 1969, 14/550,281; Oct. 31, 169, 44/86,898, 44/86,899; Dec. 4, 1969, 44/ 96,888; Mar. 17, 1970, /21,993

Int. Cl. C0815 19/08; C08d J/14, 3/02 US. Cl. 26084.1

8 Claims ABSTRACT OF THE DISCLOSURE A process for preparing an alternating copolymer of butadiene and a-olefine having the formula of CH =CHR, wherein R represents phenyl or a normal or branched chain lower alkyl radical, which comprises contacting butadiene and the u-olefine in liquid phase with a catalyst system of an organoaluminum compound, a vanadium compound having V-X linkage (X is halogen) and a compound having M-OR linkage, M is an atom whose electro negativity is lower than 2.2 and R is a hydrocarbon radical of alkyl, aryl, cycloalkyl or halogenated ether radical or a compound having (OM),,(OM') OR 1inkage (M is defined as above and M can be defined by the same definition given in M). Optionally, a halogen atom, a halogen containing compound, a metal oxide or a-metalloid oxide can be added to the catalyst system.

BACKGROUND OF THE INVENTION (1) Field of the invention The present invention relates to a process for the production of high molecular weight alternating copolymers of butadiene and a-olefine and to the catalyst used in said process.

(2) Description of the prior art 45 Because of its chipping and cutting properties and its low skid resistance, the demand for cis-1,4 polybutadiene in the field of automobile tires is not so large as was expected at first. The defects have been ascribed to its unbranched straight-chain structure. In order to overcome these defects, many attempts have been made to produce alternating copolymers of butadiene and a-olefine, for example, butadiene and propylene, butadiene and l-butene, etc. However, in general, it is not easy to produce even a random copolymer of butadiene and u-olefine by an ionic catalyst.

For instance, German Patent 1,173,254 claims a process for preparing a copolymer of conjugated diene and mono-olefine using vanadium (V) oxychloride as the catalyst, but the examples do not show a copolymerization reaction of butadiene and propylene. German Patent 1,144,924 claims a process for preparing a copolymer of diene and ethylene or propylene by using a catalyst system consisting of a compound of Ti, Zr, Ce, V, Nb, Ta, Cr, M0 or W in which the metal is at least in part below a valency of 3. This patent shows the copolymerization reaction of butadiene and ethylene by titanium tetrachloride lithiumaluminumhydride, titanium tetrachloridephenylmagnesium bromide, titanium tetrachloride-sodium dispersion, zirconium tetrachloridetintetrabutyl and tetraoctyltitanate-phenylmagnesiumbromide catalyst systems in its examples, but a process for preparing a copolymer 3,700,638 Patented Oct. 24, 1972 of butadiene and propylene is not shown. Belgian Patent 625,657 also discribes a process for preparing copolymers and terpolymers of butadiene with ethylene and (or) aolefines by using a catalyst system containing a hydrocarbon-soluble vanadium compound and an organo-aluminum compound containing more than one organic group having strong sterical hindrance, e.g. 3-methylbutyl, cycloalkyl or cyclopentylmethyl, and it claims a process for preparing ethylene-propylene-butadiene terpolymer. However, no example of butadiene-propylene copolymer is shown in it.

On the other hand, British Patent 1,108,630 shows a process for preparing a rubbery random copolymer of butadiene and propylene of high molecular weight with high content of propylene by using a three components catalyst system consisting of trialkylaluminum, iodine and a compound having the general formula of TiBr Cl wherein n is zero or an integer of l to 4. The microstructure of butadiene unit and the content of propylene unit in the copolymer are shown in the patent. But there are shown no experimental results which support the assumption which the copolymer should be a random copolymer of butadiene and propylene. A random copolymer of butadiene and propylene was also prepared by using a catalyst system consisting of triethylaluminum, titanium tetrachloride and polypropylene oxide. Polypropylene oxide was used as a randomizer and therefore a copolymer of butadiene and propylene prepared by the catalyst system of triethylaluminum and titanium tetrachloride was shown to be block-type (paper presented at 2nd Symposium on Polymer Synthesis, Tokyo, Oct. 5, 1968, The Society of Polymer Science, Japan). British Patent 1,026,615 claims a process for preparing a random copolymer of butadiene and propylene by forming a catalyst system of triethylaluminum and titanium tetrachloride in the presence of propylene, and then adding butadiene to the catalyst system.

7 According to the patent, the propylene content of the copolymer was much higher than that of the copolymer prepared by the catalyst formed after the monomers were mixed. This result is inconsistent with the result described in the above paper. A copolymerization reaction of butadiene and propylene was also carried out by using a catalyst system of triethyl-aluminum and titanium tetrachloride prepared in propylene and the product was confirmed, by fractional precipitation test, to be a copolymer of butadiene and propylene (Chemistry of High Polymers, The Society of Polymer Science, Japan, 20, 461 (1963)). The content of this paper corresponds to that of the above British patent, but there is no description in it showing that the copolymer should be a random copolymer of butadiene and propylene.

According to the method of British Pat. 982,798, a mixture containing -95 mole percent butadiene, the rest being 4-methyl-1-pentene, is polymerized at a temperature in the range 0 to 30 C. by a catalyst system which is the reaction product of vanadium (V) oxychloride with triisobutylaluminum, an aluminumdialkyl monochloride or an aluminum sesquialkyl chloride. The microstructure of the copolymer is not shown in the patent. British Pat. 924,654 describes a process for preparing a copolymer of butadiene and propylene by using an Allin catalyst. The copolymer showed a characteristic infra-red absorption band at 11.95 microns. It was ascribed to tri-substituted ethylene structure. Therefore, the result does not support the assumption that the copolymer should be a random or alternating copolymer of butadiene and propylene.

SUMMARY OF THE INVENTION The object of the present invention is to provide new catalytic systems glving high molecular weight alternating copolymers of butadiene and u-olefine in high yield.

7 In accordance with this invention, we have found that by using either one of the catalyst system of 1) an organoaluminum compound-a vanadium compound having V-X linkagea compound having MOR linkage,

(2) an organoaluminum compound-a vanadium compound having VX linkagea compound having (OM) (O--M') OR linkage,

(3) an organoaluminum compound-a vanadium compound having V--X linkagea compound having MOR linkagea halogen atom or a halogen com- P (4) an organoaluminum compound--a vanadium compound having V-X linkage-21 compound having linkagea halogen atom or a halogen compound, (5) an organoaluminum compounda vanadium compound having VX linkagea compound having MOR linkagea metal oxide or a metalloid oxide or (6) an organoaluminum compound-a vanadium compound having VX linkage--a compound having (OM) -(OM') OR linkagea metal oxide or a metalloid oxide high molecular weight alternating copolymers of butadiene and a-olefine can be produced in high yield. The alternating copolymers of this invention are rubber-like in character and can be used as polymeric plasticizers, in adhesives and can be vulcanized with sulfur or a sulfur compound to produce vulcanized elastomers.

Although, contrary to our expectation the microstructure of the butadiene units of all of these alternating copolymers were trans 1,4-configuration, the glass transition temperature of these copolymers is very low and they show rubber-like elasticity. The result coincides with that of the alternating copolymer of butadiene and acrylonitrile (J. Polymer 'Sci., Part B, II, 411 (1969)). The microstructure of the butadiene unit of the copolymer was trans 1,4-cnfiguration, but the copolymer also showed rubber-like elasticity.

The organoaluminum compounds which form the first component of the catalyst of this invention may be defined by the formula AlR,,X wherein R is a hydrocarbon radical such as alkyl radical, aryl radical or cycloalkyl radical, X is halogen and n is a number from 2 to 3. The vanadium compounds having VX linkage (X is halogen) which form the second component of the catalyst of this invention are vanadium (IV) halide having the general formula of VX,,; vanadium (V) oxyhalide having the general formula of VOX halogenated vanadium oxyalkoxide having the general formula of OV(OR),,X (R is a hydrocarbon radical such as alkyl radical, aryl radical or cycloalkyl radical and n is a number from 1 to 2); a vanadium complex compound having VX linkage such as halogenated cyclopentadienyl vanadium having the general formula of V(C H ),,,X (n is a number from 1 to 2) or V(C H X, halogenated vanadium oxyacetyl-acetonate having the general formula of (n is a number from 1 to 2), etc. The compounds having MOR linkage (M is an atom whose electro negativity (H. O. Pritchard, Chem. Rev., 55, 745 (1955)) is lower than 2.2 and R is a hydrocarbon radical such as alkyl radical, aryl radical or cycloalkyl radical or halogenated ether radical) which form the third component of the catalyst of this invention are compounds having the general for mula of AlR,,(OR) (n is a number from 0 to 2), compounds having the general formula of AlX,,(OR) (X is halogen and n is a number from 1 to 2), compounds having the general formula of (m and n are integers) prepared from aluminum halide and propylene oxide, compounds having the general formula of NaOR, compounds having the general formula of Si(OR) compounds having the general formula of Ti(OR) compounds having the general formula of Ti (OR),,X (X is halogen and n is a number from 1 to 3), compounds having the general formula of OV(OR) compounds having the general formula of Zr(OR) compounds having the general formula of Cr(OR) compounds having the general formula of B(OR) compounds having the general formula of P(OR) etc. The compounds having (OM) (OM') -OR linkage (M and M are atoms whose electro negativity (H. O. Pritchard, Chem. Rev., 55, 745 (1955)) is lower than 2.2, R is a hydrocarbon radical such as alkyl radical, aryl radical or cycloalkyl radical or halogenated ether radical and x and y are zero or integers, but both 2: and y cannot be zero at the same time) form the other third component of the catalyst of this invention. They are prepared by reacting the compounds having M-OR linkage as described above with a proper amount of water and then removing the unreacted raw materials and reaction byproducts from the reaction products. They are also prepared by adding Water and then alcohol, alcohol and then water or a mixture of water and alcohol to the compounds having MR linkage at suitable conditions and then removing unreacted raw materials and reaction byproducts from the reaction mixture. They are also prepared by the ester elimination reaction between the compounds having MOR linkage and the carboxylate of M or M atom. The metal oxides or metalloid oxides which form the fourth component of the catalyst of this invention are magnesium oxide, zinc oxide, aluminum oxides, titanium dioxide, vanadium pentoxide, silicon dioxide, silica-alumina, zeolite, boron trioxide, etc. The halogen compounds which form the other fourth component of the catalyst of this invention are halides or oxyhalides which show the properties of Lewis acid such as chromyl halide having the general formula of CrO X ferric halide having the general formula of FeX boron halide having the general formula of BX titanium tetrahalide having the general formula of TiX phosphorus pentahalide having the general formula of PX stannic halide having the general formula of SnX antimony pentahalide having the general formula of SbX oxyaluminum halide having the general formula of AlOX, aluminum halide having the general formula of A1X3, tungsten hexahalide having the general formula of WX cuprous halide having the general formula of CuX, manganous halide having the general formula of MnX magnesium halide having the general formula of MgX zinc halide having the general formula of ZnX etc.; coordinated complex of the halides or oxyhalides described above such as aluminum halide-ether complex, boron halide-ether complex, etc.; halogenated organometallic compounds such as halogenated organoaluminum compounds having the general formula of \Al'R X (R is a hydrocarbon radical such as alkyl radical, aryl radical or cycloalkyl radical and n is a number from 1 to 2), halogenated organoaluminum compound having the general formula of AlX (OR) (n is a number from 1 to 2), halogenated organotitanium compounds having the general formula of TiX (O'R) (n is a number from 1 to 3), etc.; halogenated coordinated complex of transition metal having transition metal X linkage (X is halogen) such as the compounds having the general formula of 5 5)z' 5 5) )3 5 5)2 3, etc.; halogenated alkane compounds such as halogenated tertbutyl, halogenated sec-butyl, carbon tetrahalide, etc. However, please note that a compound AlX (OR) also acts as a third component of the catalyst system, and therefore if for instance AlX(OR) is used as the third component of the catalyst, the compound cannot be used as the fourth component of the same catalyst.

In the preferred embodiment the molar ratio of organoaluminum compound which form the first component'of the catalyst of the present invention to vanadium compound having V-X linkage which form the second component of the catalyst should be higher than 0.5

in Table 1. Ref. l-Ref. 4 show the results obtained by using the two component catalysts consisting of organoaluminum compound and VX compound and the other copolymerization conditions were the same as the ones in Al/V 0.5 5 the example. It 1s found that by adding M-OR com- The d-Olefine Should be 0116 having the general formula! pound to the two components catalyst systems of organo- CH aluminum compound and V--X compound as the third 2 component the yield of the high molecular weight alterwherein R may be a normal chain or branched chain lownating copolymer of butadiene and propylene (MEK iner alkyl group or a phenyl group. soluble and diethyl ether soluble fraction) increased.

TABLE 1 Yield of alternating Catalysts 1 copolymer MEK MEK insoluble, Diluent, Organosoluble diethyl ether Exp. toluene aluminum VX fraction soluble frac- [1;] number (ml.) compound Mmol compound Mmol M-OReompound G; (g.) tion (g.) (dl./g.)

5 Al(i-Bu)3 2.5 V0015 1.0 Al(Oi-Pr)4 0. 24 0.47 0.45 5 Al(i-Bu)3 2.5 V0013 1.0 1.57 5 Al(i-Bu)a 25 V01. 3 0.1 Al(Oi-Pr); 0.24 1.02 11104311 2.5 V014 0.1 1.83 A1151; 2.5 V0013 1.0 A1(Oi-Pr) 0.24 0.36 5 AlEt 2.5 V0013 1.0 1.20 4 111125101 4.0 V0013 1.0 Al(Oi-Pr) 0.24 0. 54 4 AlEtzCl 4.0 V0013 1.0 0.35 a AlEta 4.0 V0013 1.0 mouoi-rm 1.5 1.39

l (l) i-Bu=iso-butyl,

Et=ethyl, i-Pr=iso-propyl; (2) AlCl(Oi-Pr)z=1 molar solution in toluene.

2 Intrinsic viseolsity of MEK insoluble diethyl ether soluble fraction measured in chloroform at 30 C.

Mmo

The preparation of the alternating copolymer of butadiene and ot-olefine is carried out by contacting butadiene with a-olefine in liquid phase in the presence of the catalyst system described above. The copolymerization reaction is generally carried out in the presence of a liquid organic diluent. A suitable diluent that can be used for the copolymerization reaction is a hydrocarbon compound, such as heptane, octane, isooctane, benzene or toluene. The temperature of the copolymerization reaction may be varied from 100 C. to 50 C. and sufiicient pressure is employed to keep the monomers in liquid phase. The molar ratio of butadiene to a-olefine in the initial monomer composition may be from :80 to 80:20 and more preferably is 50:50.

At the completion of the copolymerization reaction the product is precipitated and deashed using a methanol-hydrochloric acid mixture. The precipitated product is washed with methanol for several times and dried under vacuum. Thereafter the product is extracted with methyl ethyl ketone and diethyl ether successively. The methyl ethyl ketone soluble fraction is a low molecular weight alternating copolymer and methyl ethyl ketone insoluble and diethyl ether soluble fraction is a high molecular weight alternating copolymer.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention will be illustrated with reference to the following examples.

Example 1 The usual, dry, air-free technique was employed and varying amounts of M--OR compound, varying amounts of toluene and varying amounts of vanadium (V) oxy chloride solution in toluene (1 molar solution) or varying amounts of vanadium (IV) chloride were put successively in a milliliters glass bottle at 25 C. Then the bottle was left alone at 25 C. for 10 minutes. Thereafter the bottle was held in a low temperature bath at 78 C. and varying amounts of organoalurninum compound solution in toluene (1 molar solution) and a mixture of 2 milliliters liquid propylene, 2 milliliters liquid butadiene and 2 milliliters toluene were put successively into the bottle also employing the usual, dry, air-free technique. Thereafter the bottle was sealed and allowed to copolymerize at C. for 16 hours. The results are summarized Example 2 The usual, dry, air-free technique was employed and 0.24 g. aluminum triisopropoxide, 5 milliliters toluene and 1 milliliter vanadium (V) oxychloride solution in toluene (1 molar solution) were put successively in a 25 milliliters glass bottle at 25 C. Then the bottle was held in a low temperature bath at 78 C. and 2.5 milliliters triisobutylaluminum solution in toluene (1 molar solution), 3 milliliters styrene and 2 milliliters liquid butadiene were put successively into the bottle also employing the usual, dry, air-free technique. Thereafter the bottle was sealed and allowed to copolymerize at -30 C. for 1 6 hours. Alternating copolymer of butadiene and styrene showing high rubber-like elasticity was obtained. The yield was 1.02 g. When the two components catalyst system consisting of vanadium (V) oxychloride (1 mmol) and triisobutylaluminum (2.5 mmols) was employed and the other copolymerization conditions were the same as those described above, the yield of the alternating copolymer was 0.79 g.

Example 3 The usual, dry, air-free technique was employed and varying amounts of M-OR compound, varying amounts of toluene and varying amounts of vanadium (V) oxychloride solution in toluene (1 molar solution) or varying amounts of vanadium (IV) chloride were put successively in a 25 milliliters glass bottle at 25 C. Then the bottle was left alone at 25 C. for 10 minutes. Thereafter the bottle was held in a low temperature bath at 78 C. and 2.5 milliliters triisobutylaluminum solution in toluene (1 molar solution) and a mixture of 2 milliliters liquid propylene, 2 milliliters liquid butadiene and 2 milliliters toluene were put successively into the bottle also employing the usual, dry, air-free technique. Thereafter the bottle was sealed and allowed to copolymerize at -30 C. for 16 hours. The results are summarized in Table 2. Ref. l-Ref. .2 show the results obtained by using the two components catalysts consisting of triisobutylaluminum (2.5 mmol) and V-X compound (1.0 mmol) and the other copolymerization conditions were the same 7 copolymer of butadiene and propylene (MEK insoluble and diethyl ether soluble fraction) increased.

ride solution in toluene (1 molar solution) or 0.1 millimole vanadium (IV) chloride and varying amounts of TABLE 2 Yield of alternating copolymer CATALYSTS 1 MEK MEK insoluble, Organosoluble diethyl ether aluminum V-X traction soluble fraction compound Mmol compound Mmol M-OR compound G.

Aid-Bu): 2. 5 VOCla 1. NaOEt 0. 12 1. 85 0. 20 1(i-Bu 2.5 V014 1.0 NaOEt 0.12 1.81 0.20 Aid-Bu); 2.6 VOCls 1.0 B(OCuH)a 0.35 0.67 0.38 1(i-Bn 2.5 V0013 1.0 Ti(OC4Hv)4 0.7 0.52 0.21 Aid-Bu): 2.5 V001: 1.0 P(OCuH5)a 7 1.13 0.78 Al(i-Bu)a 2.5 V001; 1.0 1.58 0.13 Al(i-Bu)a 2.5 V014 1.0 1.83 0.08

Example 4 The usual, dry, air-free technique was employed and 7.5 milliliters toluene, 0.5 milliliter vanadium (V) oxychloride solution in toluene (0.1 molar solution) and varying amounts of M-OR compound made from aluminum chloride and propylene oxide were put successively in a 25 milliliters glass bottle at 25 C. Then the bottle was left alone at 25 C. for 10 minutes. Thereafter the bottle was held in a low'temperature bath at --78 C. and 0.5 milliliter triisobutylaluminum solution in toluene (1 molar solution) and a mixture of 2 milliliters liquid propylene, 2 milliliters liquid butadiene and 2 milliliters toluene were put successively into the bottle also employing the usual, dry, air-free technique. Thereafter the bottle was sealed and allowed to copolymerize at 30 C. for 16 hours. The results are summarized in Table 3.

The MOR compound used in this example was prepared as follows:

To a suspension of 10 millimoles anhydrous aluminum chloride in toluene maintained at 0 C., 40 millimoles propylene oxide was added drop-wise under agitation. The mixture was agitated for 1 hour at 0 C. and filtered in a nitrogen atmosphere. The solvent and unreacted propylene oxide were removed from the filtrate to obtain the object compound.

(O--M) --(OM') OR compound made from aluminum triisopropoxide and varying amounts of water were put successively in a 25 milliliters glass bottle at 25 C. Then the bottle was left alone at 25 C. for 10 minutes. Thereafter the bottle was held in a low temperature bath at 78 C. and 1.0 milliliter triisobutylaluminum solution in toluene (1 molar solution) and a mixture of 2 milliliters liquid propylene, 2 milliliters liquid butadiene and 2 milliliters toluene were put successively into the bottle also employing the usual, dry, airfree technique. Thereafter the bottle was sealed and allowed to copolymerize at -30 C. for 16 hours. The results are summarized in Table 4. It is found that by using the reaction product of aluminum triisopropoxide and water as the third component instead of aluminum triisopropoxide the yield of the high molecular weight alternating copolymer of butadiene and propylene (MEK insoluble and diethyl ether soluble fraction) increased.

The (OM) -(OM') OR compound used in this example was prepared as follows:

The usual, dry, air-free technique was employed and varying amounts of water was added drop-wise into aluminum triisopropoxide solution in toluene under agitation at 25 C. Then the mixture was agitated for 2 hours at 25 C. Thereafter the unreacted raw materials and reaction byproduct such as aluminum triisoproxide, water TABLE 3 Catalysts 1 Yield of alternating copolymer Raw material composition for M-OR MEK compound MEK insoluble, Dlluent, soluble diethyl ether toluene AKl-Bu); V001; A101 Propylene fraction soluble 1] Exp. number (ml.) (mmol) (mmol) (mmol) oxide (g.) fraction (g.) (dL/g.)

! Intrinsic viscosity of MEK insoluble, diethyl ether soluble fraction measured in chloroform at 30 0.

Example 5 The usual, dry, air-free technique was employed and 6.5 milliliters toluene, 0.1 milliliter vanadium (V) oxychloand alcohol were removed from the reaction product under vacuum and the compound remaining in the reaction vessel was used as the object compound.

TABLE 4 Yield oi alternating Catalysts l copolymer Raw material compositions for (OM),(OM),OR compounds MEK MEK insol- Diluent, soluble uble, diethyl toluene Aid-Bu) V-X M-OR H 0 fraction ether soluble in] Exp. number (ml.) (mmol) compound Mmol compound Mmol (mmol) (g) fraction (g). (dl./g.)

6. 5 1. 0 V0013 0. A1(Oi-Pr)a 0. 05 6. 5 1. 0 V0 C1; 0. 1 A1(Oi-Pr)a 0. 07 6.5 1. 0 V0 01; 0.1 Ai(Oi-P!)s 0.06 6. 6 1. 0 VOCI; 0. 1 Al(Oi-Pr); 0. 04 6.5 1.0 VCli 0.1 A1 Oi-Prh 0.05 6. 6 1. 0 V014 0. 1 Al(OiPr) 0. 08

i-Pr isopropyl, iBu=isobutyl. 9 Intrinsic viscosity of MEK insoluble, diethyl ether soluble fraction measured in chloroform at 30 C.

Example 6 The usual, dry, air-free technique was employed and 7.0 milliliters toluene, 0.1 milliliter vanadium (V) oxychloride solution in toluene (1 molar solution) and varying the bottle was held in a low temperature bath at 78 C. and 1.0 milliliter triisobutylaluminum solution in toluene (1 molar solution) and a mixture of 2 milliliters liquid propylene, 2 milliliters liquid butadiene and 2 milliliters toluene were put successively into the bottle also employamounts of (OM) (OM') OR compound made 0 the usual dry arr-free techmque. Thereafter the bottle from trlethylalummum, rsopropylalcohol and water were 0 put successively in a 25 milliliters glass bottle at 25 C. a g gi g ggi zgigig g 'gg ggga fif $2 32 for Then the bottle was left alone at 25 C. for minutes. The compound in this Thereafter the bottle was held in a low temperature bath example was prgpared as follyows, a 1 t'o 10 liters liquid propylene, 2 milliliters liquid butadiene and 2 for l i P 10 {m h lters Water was ded.drop'wlse mto milliliters toluene were put successively into the bottle mllhhtefs tnethylalupmium sohmon m toluene also employing the usual, dry, air-free technique. Thereinolar Solutions .g' F the after the bottle was sealed and allowed to copolymerize 15 w aglta e or f ter execs at 30" C. for 16 hours. The results are summarized in f lstfpropylalcohol ad 6 drep'wlse mto the reac' Table 5. tlon mixture under agitation at 78 C. Then the mixture The compound used in this was agitated for 2 hours at C. and refluxed for 13 example wa prepared as f ll hours. Thereafter the unreacted raw materials and reac- The usual, dry, air-free technique was employed and, 20 tion byproducts were removed from the reaction mixture for example, 20 millimoles isopropylalcohol was added under vacuum and the compound remained in the reacdropwise into 10 milliliters triethylaluminum solution in tion vessel was used.

TABLE 6 Yield of alternating Catalysts 1 copolymer Raw material composition for )x (O-M )Y O MEK Exp Diluent compound sgl rfiafi dieth ft e t l i t ei No. toluene Al(i-Bu) V0013 AlEta H20 iraction solul le irac- 1 (mL) (mmol) (mmol) (mmol) (mmol) i-PrOH (g.) tion (g.) (dL/g.)

1 l-Bu=isobutyl, Et=ethy1, i-Pr=lsopropyl. 1 Intrinsic viscosity of MEK insoluble, dlethyl ether soluble traction measured in chloroform at 30 C.

toluene (1 molar solution) under agitation at 78 C. Then the mixture was agitated for 2 hours at 25 C. Thereafter 5 millimoles water was added drop-wise into the reaction mixture under agitation at -78 C. Then the mixture was agitated for 2 hours at 25 C. and refluxed for 12 hours. Thereafter the unreacted raw materials and reaction byproducts were removed from the reaction mixture under vacuum and the compound remained in the reaction vessel was used as the object compound.

Example 8 The usual, dry, air-free technique was employed and 6.5 milliliters toluene, 0.1 milliliter vanadium (IV) chloride solution in methylene chloride (1 molar solution) and varying amounts of (O-M) -(O-M') OR compound were put successively in a 25 milliliters glass bottle at 25 C. Then the bottle was left alone at 25 C. for 10 minutes. Thereafter the bottle was held in a low temperature bath at 78 C. and 1.0 milliliter triisobutyl- TABLE 5 Yield of Catalysts 1 alternating copolymer Raw material composition for (0-M) (0M')y-0 R compound MEK MEK in- Dlluent, soluble soluble, diethyl toluene Ala-Bu); V0013 AlEt l-PrOH H20 traction ether soluble Exp. number (mmol) (mmol (mmol) (mmol) (mmol) (g.) fraction (g.)

7. 0 1. 0 0. l 0. 05 0. 10 0. G25 0. 69 0. 83 7. 0 1. 0 0. 1 0. 10 0. 20 0. 05 0. 98 0. 78 7. 0 1. 0 0. 1 0. 30 0. 0. 15 0. 17 2. 21 7. 0 1. O 0. 1 0. 60 1. 02 0. 30 0. 11 1. 94 7. 0 1. 0 0. 1 1. 00 2. 00 0. 50 0. 14 0. 97

1 i-Bu=lso-butyl, Et=ethyl, i-Pr=iso-propy Example 7 The usual, dry, air-free technique was employed and 6.5 milliliters toluene, 0.1 milliliter vanadium (V) oxychloride solution in toluene and varying amounts of (OM) (OM) OR compound were put successively in a 25 milliliters glass bottle at 25 C. Then the bottle was left alone at 25 C. for 10 minutes. Thereafter results are summarized in Table 7.

1 1 12 The (O--M) --(O-M') -R compounds used in 30 C. for 16 hours. The yield of the methyl ethyl kethis example were prepared by the method as was detone soluble fraction was 1.56 g. of methyl ethyl ketone scrlbed in Example 7. insoluble and diethyl ether soluble fraction was 0.35 g.

TABLE 7 Yield of alternating Catalysts 1 copolymer Raw material composition for (0M),(OM) 0R compounds MEK insol- Dlluent, MEK uble,diethyl Exp. toluene Aid-Bu); VCl4 Al-R com- H20 soluble ether soluble number (ml.) (mmol) (mmol) pound Mmol (mmol) Alcohol fraction (g.) fraction (g.

1 6.5 1.0 0.1 AlEti 0.50 0.25 i-PrOH, excess 0.09 0.71 2 6.6 1.0 0.1 AlEtzCl 0.50 0.25 sec-Bu0H,excess-. 0.99 0.20 Re! 6. 5 1. 0 0.1 1.81 0.13

i-Bu=is0butyl, Et=ethyl, i-Pr=isopropyl, see-Bu=see-butyl.

Example 9 The (OM) --(O--M') -0R compound used in this example was prepared as follows: 1 6 gf z g f F f l f F Q' and The usual, dry, air-free technique was employed an m ers 0 Hence m1 1 er vana mm millimoles water was added drop-wise into'20 millichloride solution in toluene (1 molar solution) and varyliter s trlethylalumlnum solution in toluene (1 molar somg amounts of (O' M)x (O M )Y' ()R compound lution) under agitation at 78 C. Then the mixture was were put successively in a 25 milliliters glass bottle at 25 a o a gltated for 2 hours at 25 C. Thereafter excessive ethyl- G Then the bottle was left alone 25 for 10 alcohol was added drop-wise into the reaction mixture utes. Thereafter the bottle was held 1n a low temperature under agitation at o G Then the mixture was agitated bath at --78 C. and 1.0 milliliter triisobutylaluminum for 2 hours at Thereafter the unreacted raw m f f (1 molar F PP of terials and reaction byproducts were removed from the 2 mllllllters llquld propylene, 2 mllhllters llquld butadlene mixture under vacuum and 1 m toluene solution of and 2 milliliters toluene were put successively into the bottle also employing the usual, dry, air-free technique. the compound was Prepared Thereafter the bottle was sealed and allowed to copolym- Example 11 erize at 30 C. for 16 hours. The results are summarized i T bl 3 The usual dry, air-free techmque was employed and The )X' )y OR compounds used in 7.0 milliliters toluene, 0.1 milliliter vanadium (V) oxythis example was prepared by the method as was described chloride solution in toluene and variable amounts of in Example 7. 4O (OM) (OM') -OR compound were put succes- TABLE 8 Yield of alternating Catalysts copolymer Raw material composition for (0-M) ,(OM) OR compounds MEK insol- Dlluent, MEK uble, diethyl Exp. toluene Ala-Bu); V001 Al-R com- H20 soluble ether soluble number (ml.) (mmol) (mmol) pomld Mnlol (mmol) Alcohol fraction (g.) fraction (g.)

1-- 6. 5 l. 0 0. 1 AlEtiCl 0. 05 0. 025 sec-B11011, exeess- 1. 74 0. 48 2 6. 5 1. 0 0. 1 AlEtzCl 0. 30 0. 15 -d0 0. 95 0. 66 3 6. 5 1. 0 0. 1 AlEtzClz 1. 00 0. 50 EtOH, excess v 1. 57 V 0. 35

1 i-Bu isobutyl, Et ethyl, se-Bu: sec-butyl.

1l-Bu=isobutyI, Et= fl y W sively in a 25 milliliters glass bottle at 25 C. Then the Example 10 60 blotte wlas left Iallluge at 25 C. for 10 mlnbuliis. 'Ihe rlga ftr t e ott e was e in a ow temperature a at 7 5Tb; dg1yl,1ea11;-f(r)e;e mliliIllilglllevzgasd 511313122 01 :3 and 1.0 milliliter triisobutyl aluminum solution in toluene .111 (1 molar solutlon) and a mixture of 2 mllllllters llquld chlonde solution m toluene and 1 er propylene, 2 milliliters liquid butadiene and 2 milliliters (O-M) (O-M') OR toluene were put successively into the bottle also employing the usual, dry, air-free technique. Thereafter the bottle was sealed and allowed to copolymerize at --30 C. for 16 hours. The results are summarized in Table 9.

The (0M) (OM') OR compound used in this solution in toluene (1 molar solution) were put successively in a 25 milliliters glass bottle at 25 C. Then the bottle was left alone at 25 C. for 10 minutes. Thereafter the bottle was held in a low temperature bath at -78 c. and 1.0 milliliter triisobutylaluminum solution example p p e asfollowsg in toluene (1 molar solution) and a mixture of 2 milli- The usual, dry, alr'ffee techmque was p y liters liquid propylene, 2 milliliters liquid butadiene and mixture of 5 millimoles Water a 40 p pl i pr py 2 milliliters toluene were put successively into the bottle alcohol was added drop-W156 Into 10 mlllllltel's y also employing the usual, dry, air-free technique. Therealuminum solution in toluene (1 molar solution) under after the bottle was sealed and allowed to copolymerize at agitation at 78 C. Then the mixture was agitated for 2 13 hours at 25 C. and refluxed for 12 hours. Thereafter the unreacted raw materials and reaction byproducts were removed from the mixture under vacuum and 1 molar toluene solution of the compound was prepared.

14 compound having M-OR linkage were put successively in a 25 milliliters glass bottle at 25 C. Then the bottle was left alone at 25 C. for minutes. Thereafter the bottle was held in' a low temperature bath at 78 C.

TABLE 9 Catalysts Yield of alternating Raw material composition for copolymer )x'( r-OR compound MEK MEK insol- Diluent, soluble uble, diethyl toluene Ala-Bu); V001; .AlEt; H10 i-PrOH fraction ether soluble Exp. No. (ml.) (mmol) (mm (mmol) (mmol) (mmol) (g.) fraction, (g.) (dl./g.)

3 Intrinsic viscosity of MEK insoluble diethyl ether soluble fraction measured in chloroform at 30 0.

Example 12 The usual, dry, air-free technique was employed and 20 varying amounts of toluene, 0.1 milliliter vanadium (V) oxychloride solution in toluene (1 molar solution) and varying amounts of (OM),(OM') .,OR compound prepared from M--OR compound and water were 25 put successively in a 25 milliliters glass bottle at 25 C. Then the bottle was left alone at 25 C. for 10 minutes. Thereafter the bottle was held in a low temperature bath at 78 C. and 1.0 milliliter triisobutylaluminum solution in toluene (1 molar solution) and a mixture of 2 3O and 0.5 milliliter triisobutylalumin-um solution in toluene (1 molar solution) and a mixture of 2 milliliters liquid propylene, 2 milliliters liquid butadiene and 2 milliliters toluene were put successively into the bottle also employing the usual, dry, air-free technique. Thereafter the bottle was sealed and allowed to copolymerize at 30 C. for 16 hours. The results are summarized in Table 11. Ref. l-Ref. 4 show the results obtained by using the catalyst whose third component is M-OR compound instead of (O-M) -(OM') OR compound of this example. It is apparently found that the yield of high molecular weight alternating copolymer of butadiene and propylene (methyl ethyl ketone insoluble and diethyl ether soluble fraction) increased in this example.

The (O-M),-(OM) -OR compound used in this erize at 30" C. for 16 hours. The results are summarized 35 example was prepared as follows:

m Table 10. The usual, dry, air-free technique was employed and TABLE 10 Yield of alternating copolymer Raw material compositions for (OM),(OM') ,OR MEK D. compounds ltl tt i 't luen, sou e ie y at er Exp. toluene Al (i-Bu); V001; M-OR Water fraction soluble fraction number (ml.) (mmol) (mmol) compound Mmol (mmol) (g.) (g.

7. 5 1. 0 0. 1 Ti(Oi-Pr)l 0. 1 0. 71 1. 2 7. 5 1. 0 0. 1 'Ii(Oi-Pr)4 0. 1 0. 42 0. 89 7. 0 1. 0 0.1 Ti(Oi-Pr)4 0. 6 0.15 2. 09 7. 0 1. 0 0. 7 Ti(Oi-Pr)4 0. 6 Trace Trace 7. 0 1. 0 0. 1 B(OEt: 0. 6 1. 0. 11 7. 0 1. 0 0. 1 B(OEt) 0. 6 0. 05 0. 01 7. 0 1. 0 0. 1 P(On-B1l)s 0. 6 1. 63 0. 13 7. 0 1. 0 0. 1 P (On-Bu); 0. 6 1. 60 0. 07 7. 0 1. 0 0. 1 VO(OE )3 0. 6 1. 46 0. 41 7. 0 1. 0 0. 1 V0(OEt)a 0. 6 Trace Trace 1 i-Bn=isobutyl, i-Pr=isopropyl, Et=ethyl,

Example 13 The usual, dry, air-free technique was employed and 55 7.5 milliliters toluene, 0.5 milliliter vanadium (V) oxychloride solution in toluene (0.1 molar solution) and varying amounts of (OM),(O-M) -OR compound prepared from the carboxylate of M or M atom and the TABLE 11 Catalysts Yield of alternating copolymer Raw material composition for (O-M) r-(OM') ,,-O R

Diluen compounds i l fi d i l l so u e e, et 1 toluene Ala-Bu). v0 01. M-O P. fraction ether solubib 1] (mmol) (mmol) Carboxylate Mmol compound Mmol (g.) fraction (g.) (dL/g.)

7. 5 0. 5 0. 05 A (CHzCOO); 0.05/4 Al(Oi-Pr)g 0. 05 1. 41 0.61 0. 5

7. 5 0. 5 0.05 A12O(CH;COO)4 0. 15/4 .Al(Oi-Pr); 0. 15 0.20 2. 24 0. 24

7. 5 0. 5 0.05 Al2O(CHiCOO)4 0.30/4 Al(Oi-Pr); 0.30 0.16 2. 18 0 67 7. 5 0. 5 0.05 AlzO(CH;COO)| 0. 50/4 AKOi-Pl'): 0. 50 0.09 0. 79 0. 68

7. 5 0. 5 0. 05 O (CHzCOO): 0. 05/2 A1(Oi-Pr)a 0. 05 0. 88 0.93

7.5 0.5 0.05 OV(CH;COO)5 0 15/2 Al(Oi-Pr)g 0.15 0.25 1. 56

7. 5 0. 5 0. 05 OV(CH;COO) 0.30/2 AKOi-Pr); 0.30 0. l2 1. 80 0.81

7. 5 0. 5 0.05 Zn(OHiCOO)a 0.15/2 Al(0i-P1')a 0. 15 0.31 1. 55

7. 5 0. 5 0. 05 ZI'(CH3C0O)4 0. 05/4 Al(Oi-Pr)a 0. 05 0. 61 0. 73

7.5 0. 5 0.05 Z1'(CH;COO)4 0 15/4 Al(Oi-Pr)g 0. 15 0.06 1.91 7

7.5 0.5 0.05 Zr(CH COO)| 0 30/4 Al(Oi-Pr); 0.30 0.04 1.95 67 Yield of alternating Y Catalysts 1. copolymer Raw material composition for (O-M) (O-M') R compounds MEK MEKinsolu- Diluent, soluble ble, diethyl toluene Al(i-Bu)s V001; M-OR fraction ether soluble [1,] Example number (mL) (mmol) (mmol) Carboxylate Mmol compound Mmol (g.) traction (g.) (dl./g.)

12 7.5 0.5 0.05 Mn(CH;COO)a 0.16/2 Al(Oi-Pr); 0.15 0- 16 7.5 0.5 0.05 Pb(CHaCOO)2 0.15/2 Al(0i-Pr)| 0.15 0.19

7.5 0.5 0.05 Al(Ol-Pr); 0.05 0.29 7.5 0.5 0.05 Al(Oi-Pr;a 0.15 0.06 7.5 0.5 0. Al(0i-Pr 0.30 0.04 7.5 0.5 0.05 Al(0i-Pr)1 0.50 0.03

1 i-Pr==isopropyl. t 1 Intrinsic viscosity of MEK insoluble, diethyl ether soluble fraction measured in chloroform 'at 30 0.

Example 14 tion) and a mixture of 2 milliliters liquid propylene, 2 I 3 milliliters liquid butadiene and- 2 milliliters toluene were The 9 y, ee t chnique was employed and put successively into the bottle also employing the usual, mlllllltel's toluene, mlllllltel' Vanadium (V) Y- dry, air-free technique. Thereafter the bottle was sealed chloride solution in toluene (0.1 molar solution) and varyand allowed to copolymerize at C. for 16 hours. ing amounts of (O-M) -(OM') -0R compound The results are summarized in Table 13.

TABLE 13 p Yield alternating Catalyst 1 copolymer Raw material composition for (0-M) =(OM),0R compound MEK MEK insolu- Diluent, soluble ble, diethyl toluene Ala-Bu); V0011 M-OR traction other soluble (m.l.) (mmol) (mmol) Carboxylate I Mmol compound Mmol (g.) traction (g.)

7.5 0 5 0.05- ovwmooo 0.15 Sl(OC,H5 l 0.30 v 1.65 0. 25 7.5 0.5 s1 oc,H. 0.30 0.13 0.17 7.5 0.5" 0.05 ov orncoo 025 51(0C1H5 4 0.50 0.33 0.72 7.5 0.5 0.06 Sl(OCzH5)4 0.50 Trace Trace prepare'd from carboxylate and the compound having Examp 1e 16 M--OR linkage were put successively in a 25 milliliters Th usual, dry, air-free technique was employed and glass bottle at 25 C. Then the bottle was left alone at 7.5 milliliters toluene, 0.5 milliliter vanadium (V) oxy- C- for 0 m es- T t r t e o t e was held i chloride solution in toluene (0.1 molar solution) and a low temperature bath at '-78 and 0.5 milliliter triiso- 0.15 milliliter (OM) (O -M )y-OR compound butylaluminum solution in toluene (1 molar solution) and 40 re ared from 2 moles titanium tetra-n-butoxide and 1 a mixture of 2 milliliters liquid propoylene, 2 milliliters mole copper acetate) solution in toluene (1 molar soluliquid butadiene and 2 milliliters toluene were put succestion based on titanium tetra-n-butoxide) were put sucsively into the bottle also employing the usual, dry, aircessively in a 25 milliliters glass bottle at 25 C. Then the free technique. Thereafter the bottle was sealed and albottle was left alone at 25 C. for 10 minutes. Thereafter lowed to copolymerize at -30 C. for 16 hours. The rethe bottle was held in a low temperature bath at 78 C. sults are summarized in Table 12.'It is found that by and 0.5 milliliter trii'sobutylaluminum solution in toluene using (O-M) (OM'),-OR compound: as the third (1 molar solution) and a mixture of 2 milliliters liquid component of the catalyst instead of =M-OR compound propylene, 2 milliliters liquid butadiene and 2 milliliters the yield of the high molecular weight alternating cotoluene were put successively into the bottle also employpolymer increased. 'ing the usual, dry, air-free technique. Thereafter the bottle TABLE 12 i Yield of alternating Catalysts l eopolymer Rawmaterialcom osltion for (O-M O-M' 0B p compounds )8 )r- MEK MEKinsolu- I Dlluent, soluble ble,diethyl toluene Ala-Bu); V0011 1 M,-OR fraction ether soluble [1 Example number n (ml.)' (mmol) (mmol) Carboxylate Mmol compound Mmol (g.) traction (g.) (dl./g.

' 7.5 0.5 0.05 cdwmcoo), 0.025 P(OCCHI1 0.05 1.50 0.23 7.5 1 0.5 0.05. 0. 025 P(OCIH5 0.05 1.71 0.19 7.5 0.5 0.05 cd(CH.C0o), 0.075. P OC5H5 0.15 0.95 0.00 7.5 0.5 0.05 Y 0.075 P(0C5H6)3 0.15 1.00 0.41 7.5 0.5 0.05 0.15 P(0C.H5)a 0.30 0 7a 1.31 7.5 0.5 0.05 0.15 H0051). 0.30 0.85 1.05 7.5 0.5 0.05 0.25 P(0CH.); 0.50 0.48 2.00 0.42 7.5 0.5 0.05 0.25 P(OCIH5)5 0.50 0. 51 1.69

I C|Hs=phenyL I Intrinsic viscosity of MEK insoluble, diethyl ether soluble fraction measured in chloroform at 30 0.

j Examp 1e 15 l I was sealed and allowed to copolymerize at --30 C. for Theusual, dry, air-free technique was employed and 16 hours. -7.5 milliliters toluene, 0.5 milliliter vanadium (V) oxy- The yield of methyl ethyl ketone soluble alternating chloride solution intoluene (0.1 molar solution) and varycopolymer of butadiene and propylene was 0.99 g. and

'ing amounts of (O--M), -(O--M)y'0R compound that of methyl ethyl ketone insoluble and diethyl ether [prepared from carboxylate and the compound having soluble alternating copolymer, i.e. high molecular weight M-OR linkage were put successively in a 25 milliliters copolymer of butadiene and propylene was 0.22 g. On glass bottle at 25 C. Then the bottle was left alone at the other hand, when 0.15 millimole titanium tetra-n- 25 C. for 10 minutes. Thereafter the bottle was held -butoxide was used as the third component of the catalyst, in alow temperature bath at -78 C. and 0.5 milliliters ;the yield of the former fraction was 0.02 g. and that of ylaluminum solution in toluene (1 molar 'solulatter fraction was 0.01 g.

1 7 Example 17 The usual, dry, air-free technique was employed and 6.0 milliliters toluene, 0.1 millimole VX compound,

1 8 ing the usual, dry, air-free technique. Thereafter the bottle was sealed and allowed to copolymerize at 30 C. for 39 hours. The results are summarized in Table 15.

TABLE 15 Yield of alternating Catalysts 1 copolymer MEK insoluble, Diluent, MEK diethyl ether toluene Aid-Bu); VX MOR Halogen soluble soluble irac- Exp. number (ml) (mmol) compound Mmol compound Mmol compound Mmol h'action(g.) tion (g.)

0.0 2.0 V 0. (00.H9)1 0.8 PO11 0.00 0.12 0.10 6.0 2.0 VOCl: 0.1 T1(OC1H 0.8 0.02 Trace 6.0 1.0 V001: 0.1 NaOEt 2.0 T101 0.08 0.54 0.53 6.0 1.0 VOCh 0.1 NaOEt 2.0 0.61 0.20 6.0 1.0 V014 0.1 P(OC0H5)3 0.6 SnCl; 0.08 0.80 1.10 6.0 1. V014 0.1 P(OCH5); 0.5 0.06 0.83

l i-Bu=isobutyl, C1Hu=n-butyl, Et=0thyl, CH =pheny1.

Example 19 varying amounts of MOR compound and varying amounts of halogen compound were put successively in a 25 milliliters glass bottle at 25 C. Then the bottle was left alone at 25 C. for minutes. Thereafter the bottle was held in a low temperature bath at 78 C. and 1.0 milliliter triisobutylaluminum solution in toluene (1 molar solution) and a mixture of 2 milliliters liquid propylene, 2 milliliters liquid butadiene and 2 milliliters toluene were The usual, dry, air-free technique was employed and 6.0 milliliters toluene, 0.1 millimole vanadium (V) oxychloride, 0.5 millimole MOR compound and varying amounts of halogen compound were put successively in a milliliters glass bottle at 25 C. Then the bottle was left alone at 25 C. for 10 minutes. Thereafter the bottle was held in a low temperature bath at 78 C. and 1.0

25 put successwely into the bottle also employing the usual, m1ll1l1ter diethylalummum monochlorrde solutlon 1n toludry, air-free technique. Thereafter the bottle was sealed ene (1 molar solution) and a mixture of 2 milliliters and allowed to copolymerize at C. for 16 hours. liquid propylene, 2 milliliters liquid butadiene and 2 mil- The results are summarized in Table 14. liliters toluene were put successively into the bottle also TABLE 14 Yield of alternating Catalysts l copolymer MEK insoluble, MEK dlethyl ether Diluent, A1(i-Bu); VX MOR Halogen soluble soluble rac- Exp. number luene (mmol) compound Mmol compound Mmol compound Mmol fraction(g.) tion (g.)

0.0 1.0 V0013 0.1 Al(Oi-Pr)a 1.2 T1014 0.08 0.13 0.71 0.0 1.0 V001, 0.1 A1(O1-Pl)a 1.2 such 0.08 0.05 1.37 0.0 1.0 V0013 0.1 Al(Oi-Pr); 1.2 tert-BuCl 0.30 0.00 1.90 0.0 1.0 V001; 0.1 Al(Oi-Pr); 1.2 AlCl(Oi-Pr); 0.30 0.04 2.40 0.0 1.0 V001; 0.1 AKOi-Pr); 1.2 0.10 0.03 0.27 0.0 1.0 V001; 0.1 Al(Oi-Pr); 1.2 AlCl; 0.10 0.05 2.38 6.0 1.0 V001; 0.1 Al(Oi-Pr);1 1.2 01101 0.00 0.02 0.33 0.0 1.0 V001; 0.1 Al(Oi-Pr); 1.2 ZnCl; 0.30 0.11 0.32 0.0 1.0 V001; 0.1 Al(Oi-Pr)a 1.2 MgClg 0.30 0.04 0.32 0.0 1.0 V001; 0.1 Al(Oi-Pr); 1.2 SbCl5 0.05 0.05 0.42 0.0 1.0 V001. 0.1 Al(0i-Pr): 1.2 M1101, 0.30 0.03 0.42 0.0 1.0 V001; 0.1 AMOi-Pr), 1.2 0.12 0.11 0.0 1.0 V014 0.1 A1(Oi-Pr)z 1.0 $11014 0.08 0.03 1.40 0.0 1.0 V014 0.1 Al(Oi-Pr)z 1.0 0.08 0.13 0.0 1.0 V001, 0.1 B(OC0H5); 0.2 SEC]; 0.08 0.83 1.24 6.0 1.0 V0013 0.1 3(000115); 0.2 0.70 1.00 0.0 1.0 V0013 0.1 1 (0009103 0.2 T1014 0.08 0.93 1.10 0.0 1.0 VOCl; 0.1 P(OCH5); 0.2 0.05 0.30

1 i-Pr=isopropyl, CH =phenyl, i-Bu=is0butyl, tert-BuCl=tert-butyl chloride.

Example 18 The usual, dry, air-free technique was employed and 6.0 milliliters toluene, 0.1 millimole VX compound,

TABLE 16 Yield of alternating Catalysts 1 eopolymer MEK Polymeriza- MEK insoluble, tion, soluble diethyl ether Exp. internal AlEtzCl V0 C1: MO R Halogen traction soluble fracnumber (hr. (mmol) (mrnol) compound Mmol compound Mmol (g.) tion (g.)

16 1. 0 0.1 Al(Oi-Pr)| 0. 5 TiCh 0. 05 0.01 0. 11 16 1. 0 0.1 Al(Oi-Pr)s 0. 5 0. 05 0. 03 20 1. 0 0.1 P(OCsH5)a 0 5 81101 0. 08 0.03 0.12 20 1. 0 0.1 P(O CQH5); 0. 02 0. 06

l i-Bu=isobutyl, i-Pr=isopropyl, C H =phenyl.

Example 20 varying amounts of MOR compound and varying amounts of halogen compound were put successively in a 25 milliliters glass bottle at 25 C. Then the bottle was left alone at 25 C. for 10 minutes. Thereafter the bottle was held in a low temperature bath at 78 C. and varying amounts of triisobutylaluminum solution in toluene (1 molar solution) and a mixture of 2 milliliters liquid propylene, 2 milliliters liquid butadiene and 2 milliliters The usual, dry, air-free technique was employed and 6.0 milliliters toluene, 0.1 millimole vanadium (V) oxychloride and 1.2 millimoles aluminum triisopropoxide were put successively in a 25 milliliters glass bottle at 25 C. Then the bottle was held in a low temperature bath at 78 C. and a mixture of 1.0 milliliter triisobutylaluminum solution in toluene (1 molar solution) and 0.15

toluene were put successively into the bottle also employmilliliter of ethylaluminum dichloride solution in toluene 1 9 (1 molarsolution) and a mixture of 2 milliliters liquid propylene, 2 milliliters liquid butadiene and 2 milliliters toluene were put successively into the bottle also employing the usual, dry, air-free technique. Thereafter the bottle 20 milliliters toluene, varying amounts of MOR compound and 0.1 milliliter vanadium (V) oxychloride solution in toluene (1 molar solution) were put successively in a 25 milliliters glass bottle at 25 C. Then the bottle was left was sealed and allowed to copolymerize at -30 C. for 5 alone at 25 C. for minutes. Thereafter the bottle was 16 hours. The yield of methyl ethyl :ketone soluble fracheld in a low temperature bath at 78" C. and 10 millition of the alternating copolymer was 0.06 g. and that liter triisobutylaluminum solution in toluene (1 molar of methyl ethyl ketone insoluble and diethyl ether soluble Solution) and a mixture of 2 milliliters liquid propylene, fraction of the copolymer, i.e. high molecular weight 00- 2 milliliters liquid butadiene and 2 milliliters toluene were polymer was 0.38 g. When the catalyst involving no ethyl- 10 put successively into the bottle also employing the usual, aluminumdichloride as the fourth component, the yield ry, alr-free techfliqlle- Thereafter, the bottle was Sealed f the latter f tio was 11 and allowed to copolymerize at -30 C. for 16 hours. E 1 21 The results are summarized in Table 18. It is found that xamp e by using the four components catalyst system the yield The usual, dry, air-free technique was employed and of the high molecular weight alternating copolymer invarying amounts of metal oxide or metalloid oxide, 7.5 creased.

TABLE 18 Yield of alternating Catalysts 1 copolymer I MEK MEK insoluble, Diluent, soluble diethyl ether toluene Aid-Bu); V001; MO R Metal oxide or fraction soluble fraction Exp. number (ml.) (mmol) (mmol) compound Mmol metalloid oxide G. (g.) (g.)

7.5 1.0 0.1 Ti (Oi-Pr); 0.1 0.69 1.43 7.5 1.0 0.1 Ti(0i-Pr) 0.1 0. 55 1.21 7.5 1.0 0.1 Ti(Oi-Pr)4 0.1 0.62 0. 93 7.5 1.0 0.1 Ti(Oi-Pr) 0.1 0.42 0.89 7.5 1.0 0.1 B(0Et), 0.1 1.43 0.39 7.5 1.0 0.1 mom); 0.1 1.52 0.20 7.5 1.0 0.1 P(On-Bu); 0.1 1.86 0.22 7.5 1.0 0.1 P(On-Bu) 0.1 2.11 0.14 7.5 1.0 0.1 Si(OEt) 0.1 2 00 0.15 7.5 1.0 0.1 Si(0Et)4 0.1 2. 03 0.10 7.5 1.0 0.1 OV(OEt)i 0.1 1.42 0.49 7.5 1.0 0.1 OV(OEt) 0.1 1.53 0.31 7.5 1.0 0.1 Na(0Et); 0.1 2.10 0.07 7.5 1.0 0.1 Na(OEt) 0.1 1.87 0. 02

l Silica-alumina=SiOz/AlzO =80/20, i-Pr=is0pr0pyl, Et=ethy1.

milliliters toluene, 0.5 milliliter vanadium (V) oxychloride solution in toluene (0.1 molar solution) and 0.15 millimole aluminum triisopropoxide were put successively in a 25 milliliters glass bottle at 25 C. Then the bottle was left alone at 25 C. for 10 minutes. Thereafter the bottle was held in a low temperature bath at 78 C. and 0.5 milliliter triisobutylaluminum solution in toluene (1 molar solution) and a mixture of 2 milliliters liquid propylene, 2 milliliters liquid butadiene and milliliters toluene were put successively into the bottle also employing the usual, dry, air-free technique. Thereafter the bottle was sealed and allowed to copolymerize at C. for 16 hours. The results are summarized in Table 17. It is found that by using the four components catalyst system the yield of the high molecular weight alternating copolymer increased.

Example 23 The usual, dry, air-free technique was employed and varying amounts of halogen or halogen compound, 7.5 milliliters toluene, 0.5 milliliter vanadium (V) oxychloride solution in toluene (0.1 molar solution) and TAB LE 17 Yield of alternating Catalysts 1 copolymer MEK MEK insoluble, Diluent, soluble diethyl ether Exp. toluene Ala-Bu); V0011 MOR Metal oxide or fraction soluble [n (mmol) (mmol) compound Mmol metalloid oxide G. (g.) traction (g.) (dL/g.)

7. 5 0. 5 0. 05 Al(0i-Pr 0. 09 7. 6 0. 5 0. 05 A1(Ol-Pr 3 0. 13 7. 5 0. 5 0. 05 A1(0l-Pr a 0. 10 7. 5 0. 5 0. 05 AMOI-Pr); 0. 14 7. 5 0. 5 0. 05 .A1(Oi-Pr;; 0. 08 7. 5 0. 5 0.05 Al(Oi-Pr 1 0. 09 7. 5 0. 5 0.05 AKOi-Pr); 0. 15 S10; 0.02 0. 10 7. 5 0. 5 0. 05 A1(Oi-Pr); 0. 15 Synthetic zeo1ite 0. 02 0. 09 7. 5 0. 5 0. 05 Al(Oi-Pr); 0. 15 Natural zeoiite 0. 02 0.08 7. 5 0. 5 0. 05 .Al(Oi-Pl)a 0. 15 V10: 0. 02 0.11 7. 5 0. 5 0. 05 A1(Oi-Pr)a 0. 15 0. 06

1 Silica-alumina=Si0a/Ah0a=80/20, Synthetic zeolite=Y-type, i-Pr=isopropyl. 3 Intrinsic viscosity of MEK insoluble, diethyl ether soluble fraction measured in chloroform at 30 0.

Example 22 The usual, dry, air-free technique was employed and air-free technique. Thereafter the bottle was sealed and allowed to copolymerize at -30 C. for 16 hours. The

varying amounts of metal oxide or metalloid oxide, 7.5 results are summarized in Table 19. It is found that by using the four components catalyst system the yield of bottle was sealed and allowed to copolymerize at 30 the high molecular weight alternating copolymer in- C. for 15 hours and then at C. for 26 hours. The recreased. sults are summarized in Table 20. It is found that by TABLE 19 Yield of alternating Catalysts 1 copolymer Raw material composition MEK for (OM),(OM compound MEK insoluble, Dlluent, soluble dlethyl ether Exp. toluene Al(i-Bu) VOCl; MOR H20 Halogen fraction soluble frac- No. (ml) (mmol) (mmol) compound Mmol (mmol) compound G. (g. tlon (g.)

1 7.5 0.25 0.05 Al(Oi-Pr); 0.15 0.075 I: 0.025 0.19 1.58 2 7.5 0.25 0.05 Al(Oi-Pr);| 0.15 0.075 AlCl(0i-Pr)z 0.2 0. 05 1.27 s 7.5 0.25 0. 05 AKOi-Pr): 0.15 0.075 A101; 0.01 0.10 1.33 Rel' 7.5 0.25 0.05 Al(0i-Pr)a 0.15 0.075 0.07 1.01

1 i-Bu=isobutyl, 1-Pr=isopropyl. Mmol.

Example 2A using the four components catalyst system the yield of The usual, dry, air-free technique was employed and the high molecular weight alternating copolymer invarying amounts of halogen or halogen compound, 7.0 creased.

TABLE Yield of alternating Catalysts l copolymer Raw material composition for (oM).(0M') 0R MEK compound ME insoluble, soluble diethyl ether Al(i-Bu)s 0C1: MOR H2O Halogen fraction soluble frac- (mrnol) (mmol) compound Mmol (mmol) compound G. (g.) tion(g.) 0.5 0.05 Al(Oi-Pr); 0.5 0.125 T1014 0.025 0.11 0.10 0.5 0.05 Al(Oi-Pr)a 0.5 0.125 Such 0.025 0.08 0.27 0.5 0.05 Al(Oi-Pr); 0.5 0.125 Tert-BuCl 0.010 0.10 0.16 0.5 0.05 Al(Oi-Pr); 0.5 0.125 AlCl(Oi-Pr) 0.100 0.12 0.15 0.5 0.05 Auoi-Pm 0.5 0.125 I2 0.043 0.07 0.21 0.5 0.05 A1(0i-Pr), 0.5 0.125 FeCl; 0.005 0.05 0.12 0.5 0.05 A1(oi-Pr), 0.5 0.125 BFs.OEt2 0.035 0.13 0.05 0.5 0.05 AKOi-Pr); 0.5 0.125 Z1112 0.010 0.12 0.11 0.5 0.05 Al(Oi-Pr); 0.5 0.125 MgClz 0.010 0.15 0.17 0.5 0.05 51(01-191), 0.5 0.125 011.01? 0.010 0.13 0.13 0.5 0.05 .Al(Oi-Pr) 0.5 0 125 051312 0.007 0 05 0.11 0.5 0.05 Al(Oi-Pr) 0.5 0 125 AlEtClz =0 050 0.15 0.09 0.5 0. 05 Al(Oi-Pr) 0.5 0 125 P015 0 004 0.03 0.10 0.5 0.05 Al(Oi-Pr)a 0.5 0.125 0.05 0.03 i-Pr=is0pr0pyl, tert-BuC1= tert-butyl chloride, Et=ethyl. Mmol. M1.

Example 40 m1ll1hters toluene, 0.5 m1ll1l1ter vanadium (V) oxychlo- P P alr'free f f was empbyed and ride Solution in toluene (0 1 molar solution) and 7.5 mllhhters toluene, 0.05 m1ll1mole halogen or halogen compound, (O--M) -(OM),,OR compound made from 0.6 millimole MOR compound and 0.6 millimole (OM)X (O M')Y OR water and 0.1 millimole vanadium (V) oxychloride solution in toluene (1 molar solution) were put successively Compound made from m1ll1mole alummum trllsoin a 25 milliliters glass bottle at 25 0. Then the bottle m n and 11-125 millimole Water were p succeswas left alone at 25 c. for 10 minutes. Thereafter the sively in a 25 milliliters glass bottle at 25 C. Then the bottle was held in a low temperature bath at 78 C. bottle was left alone at 25 C. for 10 minutes. Thereafter and 1.0 milliliter triisobutylaluminum solution in toluene the bottle was held in a low temperature bath at -78 (1 molar solution) and a mixture of 2 milliliters liquid C. and 0.5 milliliter triisobutylaluminum solution in tolpropylene, 2 milliliters liquid butadiene and 2 milliliters name (1 molar Solution) and a mixture of 2 i i i toluene were put successively into the bottle also employliquid propylene, 2 milliliters liquid butadiene and 2 miling the usual y air-free technique- Thereafter the bottle liliters toluene were put successively into the bottle also was Sealed and allowed to p y f at q employing the usual dry, ail-{fee technicluq Then the 16 hours. The results are summarized in Table 21. It 18 found that by using the four components catalyst systern the yield of the alternating copolymer increased.

TABLE 21 1 Yield of alternating Catalysts l copolymer Raw material composition for x 'b- R compound MEK MEK insolusoluble ble, diethyl Diluent, Al(i-Bu)3 V0013 MOR H2O Halogen traction ether soluble Example number toluene (mmol) (mmol) compound Mmol (mmol) compound Mmol (g) fraction (g.)

7.5 1.0 0.1 B(OEt)a 0.6 0.6 T101 0.05 1.83 0.25 7.5 1.0 0.1 B(OEt)a 0.6 0.6 1.80 0.11 7.5 1.0 0.1 P(On-Bu)s 0.6 0.6 1.65 0.18 7.5 1.0 0.2 I(On-Bu)3 0.6 0.6 1.70 0.15 7.5 1.0 0.1 P(On-Bu); 0.6 0.6 1.63 0.13 7.5 1.0 0.1 Ti (On-Bu)4 0.6 0.6 Tert-BuOl 0.05 0.09 2.20 7.5 1.0 0.1 T1(0n-Bu)4 0.6 0.6 BF3.OEtz 0.05 0.08 2.72 7.5 1.0 0.1 Ti(On-Bu)4 0.6 0.6 0.15 2.09 7.5 1.0 0.1 Si(OEt)1 0.6 06 0.05 1.98 0.36 7.5 1.0 0.1 Si(OEt)4 0.6 0.6 AlEtClg 0 05 1.86 0.20 7.5 1.0 0.1 Si(OEt)4 0.6 0.6 1.87 0.16 7.5 1.0 0.1 OV(OEt) 0.6 0.6 A1C1 .OEtz 0 05 1.99 0.52 7.5 1 0 0.1 OV(OEt)a 0.6 0.6 1.46 0.41

1 Et: ethyl, n-Bu n-butyl, tert-BuCl: tert-butyl chloride.

Example 26 alone at 25 C. for 10 minutes. Thereafter the bottle was left alone at 25 C. for 10 minutes. Thereafter the bottle was held in a low temperature bath at 78 and 1.0 Hummers toluene mllhhter vanadium (V) oxymilliliter triisobutylaluminum solution in toluene (1 mochlonde sohmon m toluene molar Solution) 5 lar solution) and a mixture of 2 milliliters liquid propyl- (OM) (OM') -OR ene, 2 milliliters liquid butadiene and 2 milliliters toluene compound made from 0.075 millimole carboxylate and were Put Successlvely Into the bottle also employing 015 millimole compound and 002 millimole the usual, dry, air-free technique. Thereafter the bottle halogen or halogen compound were put successively in a was Sealed and allowed to P Y at for 5 milliliters glass bottle at C. Then the bottle was 16 hours. The results are summarized in Table 23. It is left alone at c. for 10 minutes. Thereafter the bottle found that y using the four components ly ystem The usual, dry, air-free technique was employed and was held in a low temperature bath at 78 C. and 0.5 the yield of the alternating copolymer increased.

TABLE 23 Catalysts 1 Yield of alternating eopolymer Raw material composition for (O-M) ,-(O )y"0 R ME K compound MEK insoluble, Diluent, soluble diethyl ether toluene Al(i-Bu) V001: M-O R H2O Metal oxide or fraction soluble fraction Exp. number (ml.) (mmol) (mmol) compound Mmol (mmol) metalloid oxide G. (g.)

7. 0 1. 0 0. 1 Al(Oi-Pr)3 0. 6 0. 8 0. 10 2. 34 7. 0 1. 0 0. 1 Al(Oi-Pr)a 0. 6 0. 3 0. 08 2. 48 7. 0 1. 0 0. 1 AKOi-Pr); 0. 6 0. 3 0. l0 1. 78 7. 0 1. 0 0. 1 Al(Oi-P a 0. 6 0. 3 0. 11 1. 58 7. 0 1. 0 0. 1 Ti (Oi-P1? 0. 6 0. 6 0. 09 2. 37 7. 0 1. 0 0. 1 Ti(Oi-Pr 4 0. 6 0. 6 0. 06 2. 18 7. 0 1. 0 0. 1 Ti(Oi-Pt) 0. 6 0. 6 0. 11 2. 22 7. 0 1. 0 0. 1 Ti(Oi-Pr) 0. 6 0. 6 0. 15 2. 09 7.0 1.0 0.1 B(OE1;)3 0.6 0.6 1.80 0.18 7. 0 1. 0 0. 1 B(OEt)a 0. 6 0. 6 1. 80 0. 11 7.0 1.0 0.1 P(On-B11); 0.6 0.6 1.67 0.35 7. 0 1. 0 0. 1 P(0n-Bu) 0. 6 0. 6 1. 63 0. 13 7.0 1.0 0.1 Si(OEt 0.6 0.6 1.92 0.25 7.0 1.0. 0.1 Si(OEt)4 0.6 0.6 1.87 0.16 7.0 1.0 0.1 OV(OEt)3 0.6 0.6 1.42 0.53 7. 0 1. 0 0. 1 OV(OEt): 0. 6 0. 6 1. 46 0. 41

l i-Pr=isopropyl, Et=ethyl, n-Bu=n-butyl, SiO2/Al2O =80/20, Synthetic zeolite=Y-type. milliliter triisobutylaluminum solution in toluene (1 molar Example 28 solution) and a mixture of 2 milliliters liquid propylene, Th

e usual, dry, air-free technique was employed and usual, dry air-free technique. Thereafter the bottle Was n 6 so m to uene (1 mo at so utlon) sealed and allowed to copolymerize at -30 C. for 16 hours. The results are summarized in Table 22. It is 40 (0 Mk (0 M )y ()R found that y using the foul components catalyst Y compound made from 0.5 millimole aluminum triisoprotem the yield of the alternating copolymer increase poxide and 0.5 millimole water, 0.5 milliliter triethyl- The )x-( compound used 111 aluminum solution in toluene (1 molar solution) and a this example was prepared as follows: mixture of 2 milliliters liquid propylene and 2 milliliters The usual, y, air-free technique was p y and liquid butadiene were put successively in a 25 milliliters 0.5 molar equi e t of e y Was added into 1 glass bottle at --78 C. Thereafter the bottle was sealed mole of Compound Solution in tOltIeIle- Then and allowed to copolymerize at 30 C. for 22 hours.

the mixture was refluxed f r 100 h t r Thereafter t 11 The yield of methyl ethyl ketone soluble alternating coreacted raw materials and reaction byproducts were repolymer of butadiene and propylene was 0.08 g. and that moved under vacuum and unreacted carboxylate insoluble of methyl ethyl ketone insoluble and diethyl ether soluble toluene was removed by filtration. alternating copolymer was 0.15 g.

TABLE 22 Catalyst 1 Yield of alternating copolymer Raw material composition for (OM),(OM') -OR compound MEK MEK insol- Dlluerit soluble uble, diethyl toluene Alp-Bu); V00]; Car- M0B Halogen fraction ether soluble (1111.) (Mmol) (Mmol) boxylate Mmol compound Mmol compound Mmol (g.) fraction (g.)

7.5 0.5 0.05 011(CH3COO): 0.075 T1(011-B11)( 0.15 AlCla-OEtz--. 0.02 0.22 1.68

7.5 0.5 0.05 Cu(O 3COO)2 0.075 Ti(On-Bu)i 0.15 0.99 0.22

7.5 0.5 0.05 Ca(OH COO)i 0.075 Ti(0n-Bu)| 0.15 SnCli 0.02 0.03 0.56

7.5 0.5 0.05 Ca(CH;OOO)i0.075 Ti(0n-IBu)i 0.15 0.04 0.04

7.5 0.5 0.05 00(CH3C00)10.075 B(OCH5)3 0.15 I2 0.02 0.42 1.15

7.5 0.5 0.05 C0(CH3COO)2 0.075 B(OCIH 5)3 0.15 0.23 0.73

1 n-Bu=n-butyl, CtHts=phenyL Example 27 Example 29 The usual, dry, air-free technique was employed and The usual, dry, air-free technique was employed and 0.05 g. metal oxide or metalloid oxide, 7 milliliters tolu- 10 illilit l 0,1 milliliter vanadium (V) oxyi ene, Varying amounts of (OM)X(O M )y chloride solution in toluene (1 molar solution),

pound made from M--OR compound and water and 0.1 milliliter vanadium (V) oxychloride solution in toluene (O M)x (0M )Y OR (1 molar solution) were put successively in a 25 millicompound made from 0.5 millimole aluminum triisoproliters glass bottle at 25 C. Then the bottle was left poxide and 0.5 millimole water, 0.5 milliliter diethylaluminum monochloride solution in toluene (1 molar solution) and a mixture of 2 milliliters liquid propylene and 2 milliliters liquid butadiene were put successively in a 25 milliliters glass bottle at 78 C. Thereafter the bottle was sealed and allowed to copolymerize at 30 C. for 22 hours. The yield of methyl ethyl ketone soluble alternating copolymer of butadiene and propylene was 0.16 g. and that of methyl ethyl ketone insoluble and diethyl ether soluble alternating copolymer was 0.14 g.

Example 30 The usual, dry, air-free technique was employed and 10 milliliters toluene, 0.1 milliliter vanadium (V) oxychloride solution in toluene (1 molar solution),

compound made from 0.5 millimole aluminum triisopropoxide and 0.5 millimole water and 0.5 milliliter triisobutyl aluminum solution in toluene (1 molar solution) were put successively in a 25 milliliters glass bottle at C. Then the bottle was held in a low temperature bath at 78 C. and a mixture of 2 milliliters liquid propylene and 2 milliliters liquid butadiene were put successively into the bottle also employing the usual, dry, air-free technique. Thereafter the bottle was sealed and allowed to copolymerize at 30 C. for 22 hours. The yield of methyl ethyl ketone soluble alternating copolymer of hutadiene and propylene was 0.06 g. and that of methyl ethyl ketone insoluble and diethyl ether soluble alternating copolymer was 0.94 g.

Example 31 The usual, dry, air-free technique was employed and milliliters toluene, 0.1 milliliter vanadium (V) oxychloride solution in toluene (1 molar solution),

compound made from 0.5 millimole aluminum triisopropoxide and 0.5 millimole water, 0.5 milliliter triisobutylaluminum solution in toluene (1 molar solution) and a mixture of 2 milliliters liquid propylene and 2 milliliters liquid butadiene were put successively in a 25 milliliters glass bottle at 78 C. Thereafter the bottle was sealed and allowed to copolymerize at 0 C. for 22 hours. The yield of methyl ethyl ketone soluble alternating copolymer of butadiene and propylene was 0.97 g. and that of methyl ethyl ketone insoluble and diethyl ether soluble alternating copolymer was 0.64 g.

Example 32 The usual, dry, air-free technique was employed and 10 milliliters toluene, 0.1 milliliter vanadium (V) oxychloride solution in toluene (1 molar solution),

compound made from 0.5 millimole aluminum triisopropoxide and 0.5 millimole water, 0.5 milliliter triisobutylaluminum solution in toluene (1 molar solution) and a mixture of 2 milliliters liquid propylene and 2 milliliters liquid butadiene were put successively in a 25 milliliters glass bottle at 78 C. Thereafter the bottle was sealed and allowed to copolymerize at 50 C. for 22 hours. The yield of methyl ethyl ketone soluble alternating copolymer of butadiene and propylene was 0.14 g. and that of methyl ethyl ketone insoluble and diethyl ether soluble alternating copolymer was 1.91 g.

Example 33 The usual, dry, air-free technique was employed and 10 milliliters toluene, 0.1 milliliter vanadium (V) oxychloride solution in toluene (1 molar solution),

(OM)x(0M') OR compound made from 0.5 millimole aluminum tn'isopropoxide and 0.5 millimole water, 0.5 milliliter triisobutylaluminum solution in toluene (1 molar solution), 2

26 milliliters liquid butadiene and 2 milliliters liquid propylene were put successively in a 25 milliliters glass bottle at 78 C. Thereafter the bottles was sealed and allowed to copolymerize at --30 C. for 3.5 hours. The yield of methyl ethyl ketone soluble alternating copolymer of butadiene and propylene was 0.11 g. and that of' methyl ethyl ketone insoluble and diethyl ether soluble alternating copolymer was 1.44 g.

Example 34 The usual, dry, air-free technique was employed and 10 milliliters toluene, 0.1 milliliters vanadium (V) oxychloride solution in toluene (1 molar solution),

compound made from 0.5 millimole aluminum triisopropoxide and 0.5 millimole water, 0.5 milliliter triisobutylaluminum solution in toluene (1 molar solution), 2 milliliters liquid propylene and 2 milliliters liquid butadiene were put successively in a 25 milliliters glass bottle at 78 C. Thereafter the bottle was sealed and allowed to copolymerize at 30 C. for 3.5 hours. The yield of methyl ethyl ketone soluble alternating copolymer of butadiene and propylene was 0.19 g. and that of methyl ethyl ketone insoluble and diethyl ether soluble alternating copolymer was 1.01 g.

Example 35 The usual, dry, air-free technique was employed and 10 milliliters toluene, 0.1 milliliter vanadium (V) oxychloride solution in toluene (1 molar solution), 2 milliliters liquid butadiene,

compound made from 0.5 millimole aluminum triisopropoxide and 0.5 millimole water, 0.5 milliliter triisobutylauminum solution in toluene (1 molar solution) and 2 milliliters liquid propylene were put successively in a 25 milliliters glass bottle at 78 C. Thereafter the bottle was sealed and allowed to copolymerize at 30 C. for 3.5 hours. The yield of methyl ethyl ketone soluble alternating copolymer of butadiene and propylene was 0.17 g. and methyl ethyl ketone insoluble and diethyl ether soluble alternating copolymer was 1.98 g.

Example 36 The usual, dry, air-free technique was employed and 10 milliliters toluene, 0.1 milliliter vanadium (V) oxychloride solution in toluene 1 molar solution),

compound made from 0.5 millimole aluminum triisopropoxide and 0.5 millimole water, 2 milliliters liquid butadiene, 0.5 milliliter triisobutylaluminum solution in toluene (1 molar solution) and 2 milliliters liquid propylene were put successively in a 25 milliliters glass bottle at 78 C. Thereafter the bottle was sealed and allowed to copolymerize at -30 C. for 3.5 hours. The yield of methyl ethyl ketone soluble alternating copolymer of butadiene and propylene was 0.19 g. and that of methyl ethyl ketone insoluble and diethyl ether, soluble alternating copolymer was 1.43 g.

Example 37 The usual, dry, air-free technique was employed and 10 milliliters toluene, 0.1 milliliter vanadium (V) oxychloride solution in toluene (1 molar solution),

compound made from 0.5 millimole aluminum triisopropoxide and 0.5 millimole water, 0.5 milliliter triisobutylaluminum solution in toluene (1 molar solution) and a mixture of 2 milliliters liquid propylene and 2 milliliters liquid butadiene were put successively in a 25 milliliters glass bottle at 78 C. Thereafter the bottle was sealed and allowed to copolymerize at 30" C. for 3.5

27 hours. The yield of methyl ethyl ketone soluble alternating copolymer of butadiene and propylene was 0.25 g. and that of methyl ethyl ketone insoluble and diethyl ether soluble alternating copolymer was 1.55 g.

Example 38 The usual, dry, air-free technique was employed and 5.5 milliliters toluene, 1.0 milliliter vanadium (V) oxychloride solution in toluene (1 molar solution) and 0.5 milliliter aluminum triisopropoxide solution in toluene (1 molar solution) were put successively in a 25 milliliters glass bottle at 25 C. Then the bottle was left alone at 25 C. for minutes. Thereafter the bottle was held in a low temperature bath at 78 C. and 1.75 milliliters triisobutylaluminum solution in toluene (1 molar solution) and a mixture of 2 milliliters liquid propylene, 2 milliliters liquid butadiene and 2 milliliters toluene were put successively into the bottle also employing the usual, dry, air-free technique. Thereafter the bottle was sealed and allowed to copolymerize at -30 C. for 16 hours. The yield of methyl ethyl ketone soluble alternating copolymer of butadiene and propylene was 1.45 g. and methyl ethyl ketone insoluble and diethyl ether soluble fraction was 0.57 g.

Example 39 The usual, dry, air-free technique was employed and 1.0 milliliter toluene, 1.0 milliliter vanadium (V) oxychloride solution in toluene (1 molar solution) and 3.0 milliliters aluminum triisopropoxide solution in toluene (1 molar solution were put successively in a 25 milliliters glass bottle at 25 C. Then the bottle was left alone at 25 C. for 10 minutes. Thereafter the bottle was held in a low temperature bath at -78 C. and 3.5 milliliters triisobutylaluminum solution in toluene (1 molar solution) and a mixture of 2 milliliters liquid propylene, 2 milliliters liquid butadiene and 2 milliliters toluene were put successively into the bottle also employing the usual, dry, air-free technique. Thereafter the bottle was sealed and allowed to copolymerize at 30 C. for 16 hours. The yield of methyl ethyl ketone soluble alternating copolymer of butadiene and propylene was 0.35 g. and that of methyl ethyl ketone insoluble and diethyl ether soluble alternating copolymer was 2.18 g.

Example 40 The usual, dry, air-free technique was employed and 1.0 milliliter toluene, 1.0 milliliter vanadium (V) oxychloride solution in toluene (1 molar solution) and 2.5 milliliters aluminum triisopropoxide solution in toluene (1 molar solution) were put successively in a 25 milliliters glass bottle at 25 C. Then the bottle was left alone at 25 C. for 10 minutes. Thereafter the bottle was held in a low temperature bath at 78 C. and 5.0 milliliters triisobutylaluminum solution in toluene (1 molar solution) and a mixture of 2 milliliters liquid propylene, 2 milliliters liquid butadiene and 2 milliliters toluene were put successively into the bottle also employ-ing the usual, dry, airfree technique. Thereafter the bottle was sealed and allowed to copolymerize at 30 C. for 16 hours. The yield of methyl ethyl ketone soluble alternating copolymer of butadiene and propylene was 0.52 g. and that of methyl ethyl ketone insoluble and diethyl ether soluble alternating copolymer was 2.61 g. Intrinsic viscosity of the latter fraction measured in chloroform at 30 C. was 0.43 (dl./g.).

Example 41 The usual, dry, air-free technique was employed and 6.0 milliliters toluene, 0.05 milliliter vanadium (V) oxychloride solution in toluene (1 molar solution) and 0.30 milliliter aluminum triisopropoxide solution in toluene (1 molar solution) were put successively in a 25 milliliters glass bottle at 25 C. Then the bottle was left alone at 25 C. for 10 minutes. Thereafter the bottle was held in a low temperature bath at 78 C. and 0.5 milliliter triisobutylaluminum solution in toluene (1 molar solution) and a mixture of 2 milliliters liquid propylene, 2 milliliters liquid butadiene and 2 milliliters toluene were put successively into the bottle also employing the usual, dry, air-free technique. Thereafter the bottle was sealed and allowed to copolymerize at -30 C. for 16 hours. The yield of methyl ethyl ketone soluble alternating copolymer of butadiene and propylene was 0.04 g. and that of methyl ethyl ketone insoluble and diethyl ether soluble alternating copolymer was 0.83 g. Intrinsic viscosity of the latter fraction was 0.74 (dl./g.) measured in chloroform at 30 C.

Example 42 The usual, dry, air-free technique was employed and 4.0 milliliters toluene, 1.0 millimole vanadium (IV) chloride and 2.0 milliliters aluminum triisopropoxide solution in toluene (1 molar solution) were put successively in a 25 milliliter glass bottle at 25 C. Then the bottle was left alone at 25 C. for 10 minutes. Thereafter the bottle was held in a low temperature bath at 78 C. and 2.5 milliliters triisobutylaluminum solution in toluene (1 molar solution) and a mixture of 2 milliliters liquid propylene, 2 milliliters liquid butadiene and 2 milliliters toluene were put successively into the bottle also employing the usual, dry, air-free technique. Thereafter the bottle was sealed and allowed to copolymerize at 30 C. for 16 hours. The yield of methyl ethyl ketone soluble alternating copolymer of butadiene and propylene was 0.45 g. and that of methyl ethyl ketone insoluble and diethyl ether soluble alternating copolymer was 2.23 g.

Example 43 The usual, dry, air-free technique was employed and 8.0 milliliters toluene, 0.05 milliliter vanadium (V) oxychloride solution in toluene (1 molar solution) and (O-M) -(OM') -OR compound made from 0.05 millimole aluminum triisopropoxide and 0.05 millimole water were put successively in a 25 milliliters glass bottle at 25 C. Then the bottle was left alone at 25 C. for 10 minutes. Thereafter the bottle was held in a low temperature bath at 78 C. and 0.125 milliliter triisobutylaluminum solution in toluene (1 molar solution) and a mixture of 2 milliliters liquid propylene, 2 milliliters liquid butadiene and 2 milliliters toluene were put successively into the bottle also employing the usual, dry, air-free technique. Thereafter the bottle was sealed and allowed to copolymerize at -30 C. for 16 hours. The yield of methyl ethyl ketone soluble alternating copolymer of butadiene and propylene was 0.58 g. and that of methyl ethyl ketone insoluble and diethyl ether soluble alternating copolymer was 1.54 g. Intrinsic viscosity of the latter fraction was 0.50 (dl./ g.) measured in chloroform at 30 C.

Example 44 The usual, dry, air-free technique was employed and 8.0 milliliters toluene, 0.05 milliliter vanadium (V) oxychloride solution in toluene (1 molar solution) and (OM) -(O-M') -OR compound made from 0.3 'millimole aluminum triisopropoxide and 0.3 millimole water were put successively in a 25 milliliters glass bottle at 25 C. Then the bottle was left alone at 25 C. for 10 minutes. Thereafter the bottle was held in a low temperature bath at -7-8 C. and 0.25 milliliter triisobutylaluminum solution in toluene (1 molar solution) and a mixture of 2 milliliters liquid propylene, 2 milliliters liquid butadiene and 2 milliliters toluene were put successively into the bottle also employing the usual, dry, air-free technique. Thereafter the bottle was sealed and allowed to copolymerize at 30 C. for 16 hours. The yield of methyl ethyl ketone soluble alternating copolymer of hutadiene and propylene was 0.19 g. and that of methyl ethyl ketone insoluble and diethyl ether soluble alternating copolymer was 2.21 g. Intrinsic viscosity of the latter fraction was 0.71 (dL/g.) measured in chloroform at 30 C.

29 Example 45. f The usual, dry, air-free technique was employed and 8.0 milliliters toluene, 0.05 milliliter vanadium (V) oxychloride solution in toluene (1 molar solution) and chloride solution in toluene (1 molar solution) and 0.3 millimole M,,OR compound were put successively ina 25 milliliters glass bottle at 25 C. Then the bottle was left alone at 25 C. for minutes. Thereafter the bottle compound made from 5 was held in a low temperature bath at -78 C. and millimole aluminum triisopropoxide and 0.6.millimole varylngamounts of trlisobutylaluminum solution in tolwater were put successively into a milliliters glass .PF? (1 molar Solution) fi 2 mllhhters bottle at G Then the bottle w left alone at l1qu1d butene-l and 2 mllhhters l1qu1d butadiene were put for 10 minutes. Thereafter the bottle was held ina low SPCCBSSIVBIY 1 the bottle employing the usual, y temperature b h at 73 C; d 050 illili ii 10 air-free techmque. Thereafter the bottle was sealed and butylaluminum solution in toluene (1 mole solution) and allowed to copolymerize at r 18 S- T a mixture of 2 milliliters liquid propylene, 2 milliliters results are summarized in Table 24.

I Table 24 Yield of alternating Catalysts l copolymer MEK MEKinsclu- Diluent V soluble ble. diethyl toluene Al(i-Bu)s VOCl: M-OR traction ether soluble Exp. number (ml.) .(mrnol) .(mmol) compound Mmol (g.) fraction (g.)

7.0 0.5 0.1 Al(Osec-Bu); 0.3 0.84 1.05 7.0 0.5 0.1 NaOEt 0.3 1.22 0.75 7.0 1.0 0.1 AKOi-Pr); 0.3 0.18 1.00

1 Sec.-Bu sec.-butyl, i-Pr isopropyl.

liquid butadiene and 2 milliliters toluene were put suc- Example 48 cessively into thebottle also employing the usual, dry, air-free technique. Thereafter the bottle was sealed and allowed to copolymerize at ---30C. for 16 hours. The

yield of methyl ethyl ketone soluble alternating copoly-.

The usual, dry, air-free technique was employed and 7.5 milliliters toluene, 0.1'milliliter' vanadium (V) oxychloride solution in toluene (1 molar solution) and (OM) (OM')- -OR compound made from 0.6 millimole aluminum triisopropoxideand 0.3 millimole The usual, dry, air-free technique was employed and 7.0 milliliters toluene, 0.1 milliliter vanadium (V) oxychloride solution in toluene (1 molar solution) and varying amounts of (OM) (OM') OR compound were put successively in a 25 milliliter glass bottle at 25 C. Then the bottle was left alone at 25 C. for 10 minutes. Thereafter the bottle was held in a low temperature bath at -78? C. and 1.0 milliliter organoaluminum compound solution intoluene (1 molar solution) and a mixture of 2 milliliters liquid butene-l and 2 milliliters liquid butadiene were put successively into the bottle also employing the usual, dry, air-free technique. Thereafter the bottle was sealed and allowed to copolymerize at 30 C. for

18 hours.,The results are summarized in Table 25. The (OM) (OM') OR compound used in Exp. No.

water were put successively in a 25 milliliters glass bottle 40 1 was prepared by the method described in Example 7.

. Catalysts p Yield of alternating I Raw material compositions for copolymer '(OM)z( M )y- 'QR compounds MEK 1 MEK insoluble, Diluent, Organo- Al-R or soluble diethyl ether toluene aluminum VOCla Al-OR H fraction soluble trac- Exp. number (1:01.) compound Mmol (mmol) compound Mmol (mmol) i-PrOH (g.) tiou (g.)

1 7.0 Aid-Bu); 1.0 0.1 AlEt; 1.0 1.0 Excess.. 0.26 1. l9 2 7.0 AlEtzCl 1.0 0.1 Al(0i-,Pr)1 0.5 0.5 0.08 0.01

l i-Pr=isopropyl, Et=ethyl.

at 25 C. Then the bottle was left alone at 25 C. 'for 10 I minutes. Therefore the bottle w'as'held in a low tempera-f polymer was 1.91 g. Intrinsic viscosity of the latter frac-.

tion was 0.66 (dl./g.) measured in chloroform at 30 C. Example 47 The usual, dry, air-free technique was employed and 7.0 milliliters toluene, 0.1 milliliter vanadium (V) oxy- Example 49 The usual; dry, air-free technique was employed and 0.05 millimole titanium tetrachloride or 0.02 g. vanadium pentoxide, 7.0 milliliters toluene, 0.1 milliliter vanadium (V) oxychloride solution in toluene (1 molar solution) or 0.1 milliliter vanadium (IV) chloride solution in methylene chloride (1 molar solution) and compound were put'in a 25 milliliters glass bottle at 25 C. Then the bottle was left alone at 25 C. for 10 minutes. Thereafter the bottle was held in a low temperature bath at -78 C. and 1.0 milliliter organoaluminum compound solution in' toluene (1 molar solution) and a mixture of '2 milliliters liquid hutene-l and 2 milliliters liquid butadiene were put successively into the bottle also .employing the usual, dry, air-free technique. Thereafter the bottle was sealed and allowed to copolymerize' at solution) and a mixture of 2 milliliters liquid 4-methyl '30 C. for 18'hours. The results are summarized in pentene-l and 2 milliliters liquid butadiene were put suc- Table 26. cessively into the bottle also employing the usual, dry,

TABLE 26 Yield of alternating Catalysts l copolymer Raw material compositions i for (O-M) --(OM') OR MEK i compounds Halogen MEK insoluble, Diluent Organoalucompound soluble dlethyl ether Exp. toluen num V-X M-OR 1120 or metal traction soluble fracnumber (m.l.) compound Mmol compound Mmol, compound Mmol (mmol) oxide (g.) tion (g.)

1 7.0 AlEts 1.0 VOCI; 0.1 B(OEt)1 0.5 0.5 T1014 0.05 0.85 0.28 2 7.0 Al(i-Bu)a 1.0 V 14 0.1 P(On-Bu)| 0.5 0.5 V 0: 0.02 1.02 0.70

Et=ethyl, n-Bu=n-butyl. Mmol. G.

Example 50 air-free technique. Thereafter the bottle was sealed and The usual, dry, air-free technique was employed and allowed to copolymerize at C. for 40 hours. The re- 7.0 milliliters toluene, 0.1 milliliter vanadium (V)' oxysults are summarized in Table 28.

TABLE 28 Yield of alternating Catalysts l copolymer Raw materlal corn sition for )x )v K compounds MEK insoluble, Diluent, Organosoluble diethyl ether toluene aluminum VOCh M-0R Hi0 traction :soluble Exp. number (ml.) compound Mmol (mmol) compound Mmol (mmol) (g.) fraction (3.)

1 7.0 Ala-Bu); 1.0 0.1 Al(Ol-Pr) 0.1 0.05 0.41 1.84 2 7.0 AlEt; 1.0 0.1 OV(OEt)| 1.0 1.0 0.28 1.18

l i-Bu=isobutyl, i-Pr=isopr0pyl, Et=ethyl.

chloride solution in toluene (1 molar solution) or 0.1 Example 52 milliliter vanadium (1V) chloride solution in methylene chloride (1 molar solution) and The usual, dry, air-free technique was employed and 7.0 milliliters toluene, 0.1 milliliter vanadium (IV) chlo- T-0R ride solution in methylene chloride (1 molar solution) compound made from aluminum triisopropoxide and and 0.1 mmole triphenyl borate were put in a 25 milliwater were put successively in a 25 milliliters glass bottle liters glass bottle at 25 C. Then the bottle was left alone at 25 C. Then the bottle was left alone at 25 ,C.'-for 10 at 25 C. for 10 minutes. Thereafter the bottle was held minutes. Thereafter the bottle was held in'a'low temperain a low temperature bath at 78 C. and 0.5 milliliter ture bath at -78 C. and 1.0 milliliter triisobutylalumitriisobutylaluminum solution in toluene (1 molar solunum solution in toluene (1 molar solution) and a mixture tion) and a mixture of 2 milliliters liquid 4-methyl-penof 2.8 milliliters liquid pentene-l and 2 milliliters liquid tene-l and 2 milliliters liquid butadiene were put sucbutadiene were put successively into the bottle also erncessively into the bottle also employing the usual, dry, airploying the usual, dry, air-free technique. Thereafter the free technique. Thereafter the bottle was sealed and albottle was sealed and allowed to copolymerize at --30 lowed to copolymerize at '30 C. for 29 hours. The C. for 40 hours. The result are summarized in Table 27. yield of methyl ethyl ketone soluble alternating copolymer TABLE 27 f Yield of alternating Catalyst copolymer Rawmaterlal eom sition (or (OM),(OM y-OR MEK compound MEK insoluble Diluent, soluble dlethyl ether Toluene Al(i-Bu)| VX M-OR H10 fraction soluble trac- Exp. number (1111.) (mmol) compound Mmol compound Mmol (mmol) (g.) tion(g.)

1 7.0 1.0 V001; 0.1 AMOi-Prj; 0.1 0.05 0.36 1.00 2 7.0 1.0 V014 0.1 -A1(0i-Pr); 0.1 0.1 0.09 0.45

l i-Pr=isopropyl.

Example 51 woflautadiene and 4-methyl-pentene-1 was 0.23 g. and that of methyl ethyl ketone insoluble and diethyl ether solub alternating copolymer was 0.95 g.

Example 53 (O-M) (O-M') --OR The usual, dry, air-free technique was employed and 10.0 milliliters toluene, 0.1 milliliter vanadium (V) oxycom and were ut successfull in a 25 millrllters I glass bottle at 25 C. Then the liottle was left alone at FE solutlqn m toluene molar or 25 C. for 10 minutes. Thereafter the bottle was held a milliliter vanadmm V chloride solunon methylene low temperature bath at -78 C. and 1.0 milliliter orlchlorulde (1 9 l n) and ganoaluminum compound solution in toluene (1 molar 75 (OM) -(O---M') --OR The usual, dry, air-free technique was employed and 7.0 milliliters toluene, 0.1 milliliter-vanadium V) oxychloride solution in toluene and 7 TABLE 31 Yield of dlethyl ether soluble Catalysts 1 alternating copolymer of Diluent, lAl (l-Bu); VX M-OV buladlne Exp. number toluene (mmol) compound Mmol compound Mmol styrene (g).

1 5.0 1.0 VOCli 0.1 B(OCH5); 0.3 0.27 2 5.0 0. 5 VCh 0. l P(0CtHs)= 0. l 0. 70

1 CiHs=phenyl, i-Bu=isobutyl.

Example 57 2. A process as claimed in claim 1, wherein the molar The usual, dry, air-free technique was employed and 5.0 milliliters toluene, 0.1 milliliter vanadium (V) oxychloride solution in toluene or 0.1 milliliter vanadium (IV) chloride solution in methylene chloride and varying amounts (OM),(O-M') OR compound were put successively into a 25 milliliters glass bottle at 25 C. Then the bottle was left alone at 25 C. for minutes. Thereafter the bottle was held in a low temperature bath at 78 C. and 1.0 milliliter organoaluminum compound in toluene (1 molar solution), 3 milliliters styrene and 2 milliliters liquid butadiene were put successively into the bottle also employing the usual, dry, air-free technique. Thereafter the bottle was sealed and allowed to copolymratio of the organoaluminum compound (A) to the vanadium compound having a VX linkage (B) is higher than 0.5.

B. A process as claimed in claim 1, wherein the copolymerization reaction is carried out in the presence of a hydrocarbon diluent.

4. A process as claimed in claim 1, wherein the molar ratio of butadiene to a-olefin in the initial monomer composition is from 20:80 to 80:20.

5. A process as claimed in claim 1, wherein the molar ratio of butadiene to a-olefin in the initial monomer composition is substantially 50:50.

6. A process as claimed in claim 1, wherein the coerize at various polymerization conditions. The results polymerization temperature is from -100 C. to +50 C.

are summarized in Table 32.

7. A process as claimed in claim 1, wherein said M TABLE 32 Catalysts Yield of Raw material compositions for Polymerization diethyl ether (0-M) X "'(O M )y-'OR compound conditions soluble alternating Exp. Organo VX M-OR or Temperacopolymer nnmaluminum com- Al-R H 0 and ture Interval butadiene and bar compound Mmol pound Mmol compound Mmol carboxylate Mmol R-OH 0.) (hr.) styrene (g.)

1 AlEt; 1.0 V001; 0.1 Al- AlzO- 0.25 0 42 0.14

(Oi-Pr); (CHiCOOh 2 Aid-Bu): 1.0 VOli 0 1 AlEtflCl 0.5 H10 0.5 i-PrOH 42 0.82

excess 3 AlEt; 1.0 V014 1.0 H20 1.0 0 70 0.18

(Ol-Pr) 3 l Et=ethyl, i-Bu=isobuty1, i-Pr =lsopropyl.

What we claim is:

1. A process for preparing a 1:1 copolymer of butadione and an a-olefin having alternating butadiene and a-olefin units, said a-olefin having the formula OHFOHR wherein R represents a phenyl radical or a C -C normal or branched chain lower alkyl radical, which comprises contacting butadiene and the m-olefin in liquid phase with a catalyst system selected from the group consisting of (A), (B) and (C), and (A), (B), (C) and (D) wherein (A) is an organoaluminum compound having the general formula AlR' X in which R is selected from the group consisting of an alkyl, a cycloalkyl and an aryl radical, X is halogen and n is 2 or 3, (B) is a vanadium compound having a VX linkage wherein X is halogen, (C) is a compound having a M-OR" or a linkage in which M and M are atoms whose electronegativity is from 0.9 to 2.2, R" is a hydrocarbon radical selected from an alkyl, an aryl, a cycloalkyl and a halogenated ether radical and x and y are zero or integers, with the proviso that x and y are not each zero, and (D) is selected from the group consisting of a halogen atom, halogen compound, a metal oxide and a metalloid oxide.

References Cited UNITED STATES PATENTS 3,317,496 5/1967 Naha et al. 260-882 3,440,179 4/ 1969 Bayer et al 252429 3,476,732 11/ 1969 Bayer et a1. 260-943 3,513,151 5/ 1970 Santiago 26094.9 3,558,587 1/ 1971 Bayer et a1. 260-933 3,624,060 11/1971 Judy 26088.2

JAMES A. SELDLECK, Primary Examiner R. A. GAITHER, Assistant Examiner US. Cl. X.R. 

